In terms of precipitation, rainfall in Springfield, Illinois ranges from 1.8 - 4.5 inches per month. June is typically the wettest month, when rainfall can reach 4.5 in. January is typically the driest time to visit Springfield, Illinois when rainfall is around 1.8 in.

If weather is an important factor for your trip to Springfield, Illinois, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 75.2 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 26.6 F).

What is the cheapest month to fly from Washington, D.C. Dulles Intl Airport to Springfield, Illinois?

Due to multiple factors, expect to potentially pay more when booking in June. For low rates, January can be a great choice for travel to Springfield, Illinois. Flights to Springfield, Illinois from Washington, D.C. Dulles Intl Airport in January are about $382 on average during January, but can be found for as low as $263.

What is the cheapest time of day to fly from IAD to SPI?

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Washington, D.C. Dulles Intl Airport to Springfield, Illinois as you normally would.

What airport do you fly into for flights to Springfield from Washington, D.C. Dulles Intl?

If you book a flight to Springfield from Washington, D.C. Dulles Intl, you will be flying to Capital, which is the city’s only airport. Springfield Capital (SPI) is located 3.4 mi from the center of Springfield. There are 0 flights from Washington, D.C. Dulles Intl to Capital per day from 0 different airlines.

Can I find deals for flights from Dulles Intl to Springfield that include hotel bookings?

Yes. In addition to deals on Dulles Intl to Springfield flights, Cheapflights offers vacation packages that include both flights and hotel.

How can I find direct flights from Dulles Intl to Springfield?

After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Dulles Intl to Springfield.

Can I find deals for business class flights from Dulles Intl to Springfield?

Yes. Cheapflights offers flight deals from Dulles Intl to Springfield by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

$431+ Cheap Flights from Washington, D.C. Dulles Intl Airport to Springfield, IL

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Cheap flight deals from Dulles Intl to Springfield

Round-trip from	$431 (American Airlines)
Popular in	June
Cheapest in	January
Average price	$418

From Washington, D.C. Dulles Intl to Springfield Capital

Search Deals

Highest demand for flights based on searches. 23% potential increase in price ($116 potential increase over avg. RT price).

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Cheapest flight prices on average. 9% potential price decrease ($34 potential savings vs. average RT price).

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Average for round-trip flights in September 2025

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Find flight deals from Dulles Intl to Springfield

Cheapest flights from Dulles Intl to Springfield
Explore the most affordable flight options available from Dulles Intl to Springfield. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 11, 2025.

Fri 12/57:59 amIAD - SPI

2 stops8h 03mAmerican Airlines

Mon 12/86:00 amSPI - IAD

2 stops6h 34mAmerican Airlines

Deal found 9/10

$431

Thu 9/259:16 amIAD - SPI

2 stops9h 43mAmerican Airlines

Mon 9/296:31 pmSPI - IAD

2 stops15h 26mAmerican Airlines

Deal found 9/10

$612

Wed 9/1711:18 amIAD - SPI

2 stops7h 42mAmerican Airlines

Fri 9/196:31 pmSPI - IAD

3 stops14h 36mAmerican Airlines

Deal found 9/9

$749

Best flights from Dulles Intl to Springfield
Discover carefully curated flight deals from Dulles Intl to Springfield that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated September 11, 2025.

Fri 12/57:59 amIAD - SPI

2 stops8h 03mAmerican Airlines

Mon 12/86:00 amSPI - IAD

2 stops6h 34mAmerican Airlines

Deal found 9/10

$431

Fri 10/176:34 amIAD - SPI

2 stops7h 38mAmerican Airlines

Mon 10/201:42 pmSPI - IAD

2 stops9h 11mAmerican Airlines

Deal found 9/11

$431

Thu 10/166:34 amIAD - SPI

2 stops7h 38mAmerican Airlines

Mon 10/201:42 pmSPI - IAD

2 stops9h 11mAmerican Airlines

Deal found 9/11

$431

Thu 9/259:16 amIAD - SPI

2 stops9h 43mAmerican Airlines

Mon 9/296:31 pmSPI - IAD

2 stops15h 26mAmerican Airlines

Deal found 9/10

$612

Last-minute flights from Dulles Intl to Springfield
Discover last-minute flight deals from Dulles Intl to Springfield. Data last updated September 11, 2025 and is based on user searches.

Wed 9/1711:18 amIAD - SPI

2 stops7h 42mAmerican Airlines

Fri 9/196:31 pmSPI - IAD

3 stops14h 36mAmerican Airlines

Deal found 9/9

$749

Thu 9/259:16 amIAD - SPI

2 stops9h 43mAmerican Airlines

Mon 9/296:31 pmSPI - IAD

2 stops15h 26mAmerican Airlines

Deal found 9/10

$612

Thu 10/166:34 amIAD - SPI

2 stops7h 38mAmerican Airlines

Mon 10/201:42 pmSPI - IAD

2 stops9h 11mAmerican Airlines

Deal found 9/11

$431

Cheapflights Fare Finder

Use the filters below to find and compare flights from Washington, D.C. Dulles Intl Airport to Springfield that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Washington, D.C.Springfield

IAD - SPI

IADSPI

Washington, D.C. Dulles Intl

Fri 12/5

7:59 am-3:02 pm

2 stops8h 03m

Springfield Capital

Mon 12/8

6:00 am-1:34 pm

2 stops6h 34m

$431

Washington, D.C.Springfield

IAD - SPI

IADSPI

Washington, D.C. Dulles Intl

Fri 10/17

6:34 am-1:12 pm

2 stops7h 38m

Springfield Capital

Mon 10/20

1:42 pm-11:53 pm

2 stops9h 11m

$431

Washington, D.C.Springfield

IAD - SPI

IADSPI

Washington, D.C. Dulles Intl

Thu 10/16

6:34 am-1:12 pm

2 stops7h 38m

Springfield Capital

Mon 10/20

1:42 pm-11:53 pm

2 stops9h 11m

$431

Washington, D.C.Springfield

IAD - SPI

IADSPI

Washington, D.C. Dulles Intl

Thu 9/25

9:16 am-5:59 pm

2 stops9h 43m

Springfield Capital

Mon 9/29

6:31 pm-10:57 am

2 stops15h 26m

$612

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/10

Best time to book a flight from Dulles Intl to Springfield

Have a flexible travel schedule? Discover the best time to fly to Springfield from Dulles Intl with our price prediction graph.

Estimated round-trip price

Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from Washington, D.C. Dulles Intl Airport to Springfield

What is the cheapest month to book a flight from Washington, D.C. Dulles Intl Airport to Springfield, Illinois?

Currently, March is the cheapest month in which you can book a flight from Washington, D.C. Dulles Intl Airport to Springfield, Illinois (average of $338). Flying from Washington, D.C. Dulles Intl Airport to Springfield, Illinois in September is currently the most expensive (average of $486). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

Related info for your journey

What airport do you fly into for flights to Springfield from Washington, D.C. Dulles Intl?
If you book a flight to Springfield from Washington, D.C. Dulles Intl, you will be flying to Capital, which is the city’s only airport. Springfield Capital (SPI) is located 3.4 mi from the center of Springfield. There are 0 flights from Washington, D.C. Dulles Intl to Capital per day from 0 different airlines.
How long is the flight from Washington, D.C. Dulles Intl Airport to Springfield, Illinois?
American Airlines can get you from Washington, D.C. Dulles Intl Airport to Springfield, Illinois in just under 8h 03m. Your travel time can differ by up to . The distance between Washington, D.C. Dulles Intl Airport and Springfield, Illinois is about 655 mi.
Can I find deals for flights from Dulles Intl to Springfield that include hotel bookings?
Yes. In addition to deals on Dulles Intl to Springfield flights, Cheapflights offers vacation packages that include both flights and hotel.
How can I find direct flights from Dulles Intl to Springfield?
After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Dulles Intl to Springfield.
Can I find deals for business class flights from Dulles Intl to Springfield?
Yes. Cheapflights offers flight deals from Dulles Intl to Springfield by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.
What is the cheapest month to book a flight from Washington, D.C. Dulles Intl Airport to Springfield, Illinois?
Currently, March is the cheapest month in which you can book a flight from Washington, D.C. Dulles Intl Airport to Springfield, Illinois (average of $338). Flying from Washington, D.C. Dulles Intl Airport to Springfield, Illinois in September is currently the most expensive (average of $486). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

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$431+ Cheap flights from Dulles Intl (IAD) to Springfield, IL (SPI)

This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 12/5. Fares are subject to change and may not be available on all flights or dates of travel.

Find cheap flights from Dulles Intl to Springfield with Cheapflights

1. Tell us where you want to go

2. Select your favorite providers

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Cheap flight deals from Dulles Intl to Springfield

Round-trip from

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Find flight deals from Dulles Intl to Springfield

Cheapest flights from Dulles Intl to SpringfieldExplore the most affordable flight options available from Dulles Intl to Springfield. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 11, 2025.

Explore the most affordable flight options available from Dulles Intl to Springfield. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 11, 2025.

Cheapflights Fare Finder

Use the filters below to find and compare flights from Washington, D.C. Dulles Intl Airport to Springfield that are best for you.

Best time to book a flight from Dulles Intl to Springfield

Have a flexible travel schedule? Discover the best time to fly to Springfield from Dulles Intl with our price prediction graph.

Cheapflights Insights

Everything you need to know about your flight from Washington, D.C. Dulles Intl Airport to Springfield

What is the cheapest month to book a flight from Washington, D.C. Dulles Intl Airport to Springfield, Illinois?

Related info for your journey

Find useful and relevant information for your journey from Dulles Intl to Springfield. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

What airport do you fly into for flights to Springfield from Washington, D.C. Dulles Intl?

How long is the flight from Washington, D.C. Dulles Intl Airport to Springfield, Illinois?

Can I find deals for flights from Dulles Intl to Springfield that include hotel bookings?

How can I find direct flights from Dulles Intl to Springfield?

Can I find deals for business class flights from Dulles Intl to Springfield?

What is the cheapest month to book a flight from Washington, D.C. Dulles Intl Airport to Springfield, Illinois?

Traveling to a place near Springfield?

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Cheapest flights from Dulles Intl to Springfield
Explore the most affordable flight options available from Dulles Intl to Springfield. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 11, 2025.